<button class="button">
  <span class="span">Button</span>
</button>

<style>
/* From Uiverse.io by umairmanzoor1143  - Tags: loading, button, on, off, glow, circle, rotate, click */
.button {
  background: #fff;
  position: relative;
  border: none;
  padding: 10px 20px;
  display: inline-block;
  font-size: 15px;
  font-weight: 600;
  text-transform: uppercase;
  cursor: pointer;
  transition: 0.5s;
}
.span {
  display: inline-block;
}
.button:hover {
  font-size: 20px;
  transform: skew(-5deg);
  padding-right: 30px;
}
.button::before {
  content: "";
  box-sizing: border-box;
  position: absolute;
  top: 50%;
  left: 70%;
  width: 15px;
  height: 15px;
  margin-top: -8px;
  margin-left: -5px;
  border-radius: 50%;
  border: 2px solid #ccc;
  border-top-color: #000;
  opacity: 0;
  animation: spinner 0.6s linear infinite;
  transition: 0.5s;
}
.button:hover::before {
  opacity: 1;
  left: 85%;
}
@keyframes spinner {
  to {
    transform: rotate(360deg);
  }
}

</style>
    